An agent which sent a touting letter to landlords telling them they could get higher rents has found itself at the centre of a major controversy.

More than 11,200 people have so far signed a petition objecting to the letter sent by a CJ Hole franchisee in Bristol. A protest march is planned for this Saturday.

The organiser of the petition, which accuses the business of exploiting tenants, is aiming for 15,000 signatures.

The plan is to deliver it during a demonstration this Saturday outside the Southville branch in Bristol of CJ Hole.

The row started with a letter apparently sent by CJ Hole to tenanted properties and opened by a tenant who posted it on Twitter.

CJ Hole is part of the Xperience brand which was last year acquired by Martin and Co. The Bristol franchisee in question, Paul Goverd,  is said to be one of the most successful and dedicated in the network.

However, a second CJ Hole franchisee in Bristol has not only distanced itself from the letter but signed the petition.

Eye was unable to get any comment from CJ Hole or its parent company.

The letter to landlords at the centre of the storm is headed: “Are you getting enough rent.”

It told prospective landlords that it was “highly likely” that their properties were due a rent increase.

The petition tells CJ Hole to stop sending letters that encourage “excessive and unjustified rental increases”.

Petition organiser Nathan Williams said: “I was quite shocked to see such a crude and cynical attempt to profit from the housing crisis in Bristol.

“Estate agents should not be encouraging their landlord clients to raise rents in such a crude way. And the letter itself made no mention of tenants’ rights.”

One woman who signed the petition posted: “This is worrying and has obviously touched a big nerve in the city, but all the other agents are doing it too.”

Fellow franchisee Chris Hill, managing director of five CJ Hole offices in north Bristol, said: “I agree with the petition and have signed. My offices believe in good service as reason to use us, shame Southville have chosen this route.”

He added: “No office under my control sends these, nor will ever.”

The affair has been widely covered in the local media, raising issues such as security of tenure, rent caps and targeted evictions.

One Bristol agent watching from the sidelines and totally unrelated to CJ Hole, told Eye it was “an easy mistake to make” – sending a touting letter for a landlord to a tenanted property. The agent felt CJ Hole had made matters worse by not responding.

However, one source told Eye that the reality was that the franchisee was an honest and successful agent, simply drawing landlords’ attention to their ability to get the best possible rents that the local market would bear.